The role of executive function in autobiographical memory retrieval: does the type of cue word matter?

ABSTRACT

Autobiographical memories are memories for personally experienced life events. Previous research has revealed individual differences in the ability to recall specific memories that happened at a particular time and place. Some studies suggest such differences can be attributed to the varying capacity of executive function. However, little is known regarding which specific executive function skills predict autobiographical memory specificity. Participants were asked to complete multiple measures of executive function as well as an autobiographical memory task in which they were asked to recall a specific personal memory connected to concrete and abstract cue words. We hypothesised that executive function will be positively related to autobiographical memory specificity and that this relation will be moderated by the cue word type. The results revealed that individuals with higher executive function skills, specifically, higher inhibitory control and cognitive flexibility, recalled significantly more specific memories than those with lower executive function skills; however, no significant interaction between executive function ability and cue word type was found.     

Free-ranging dogs assess the quantity of opponents in intergroup conflicts

In conflicts between social groups, the decision of competitors whether to attack/retreat should be based on the assessment of the quantity of individuals in their own and the opposing group. Experimental studies on numerical cognition in animals suggest that they may represent both large and small numbers as noisy mental magnitudes subject to scalar variability, and small numbers (≤4) also as discrete object-files. Consequently, discriminating between large quantities, but not between smaller ones, should become easier as the asymmetry between quantities increases. Here, we tested these hypotheses by recording naturally occurring conflicts in a population of free-ranging dogs, Canis lupus familiaris, living in a suburban environment. The overall probability of at least one pack member approaching opponents aggressively increased with a decreasing ratio of the number of rivals to that of companions. Moreover, the probability that more than half of the pack members withdrew from a conflict increased when this ratio increased. The skill of dogs in correctly assessing relative group size appeared to improve with increasing the asymmetry in size when at least one pack comprised more than four individuals, and appeared affected to a lesser extent by group size asymmetries when dogs had to compare only small numbers. These results provide the first indications that a representation of quantity based on noisy mental magnitudes may be involved in the assessment of opponents in intergroup conflicts and leave open the possibility that an additional, more precise mechanism may operate with small numbers.     

Power and choice: their dynamic interplay in quenching the thirst for personal control

Power and choice represent two fundamental forces that govern human behavior. Scholars have largely treated power as an interpersonal construct involving control over other individuals, whereas choice has largely been treated as an intrapersonal construct that concerns the ability to select a preferred course of action. Although these constructs have historically been studied separately, we propose that they share a common foundation--that both are rooted in an individual's sense of personal control. Because of this common underlying basis, we hypothesized that power and choice are substitutable; that is, we predicted that the absence of one would increase the desire for the other, which, when acquired, would serve to satisfy the broader need for control. We also predicted that choice and power would exhibit a threshold effect, such that once one source of control had been provided (e.g., power), the addition of the other (e.g., choice) would yield diminishing returns. Six experiments provide evidence supporting these predictions.     

Main and Moderated Effects of Moral Cognition and Status on Bullying and Defending

This study analyzed the relations of two dimensions of moral cognition (i.e., acceptance of moral transgression and moral disengagement) and two forms of status in the peer group (i.e., social preference and perceived popularity) with bullying and defending among 235 primary‐school children and 305 middle‐school early adolescents. Social status was tested as a moderator of the associations between moral cognition and bullying and defending. Participants completed self‐reports assessing the two dimensions of moral cognition and peer nominations for status, bullying, and defending. Both acceptance of moral transgression and moral disengagement were associated to bullying among early adolescents only, whereas in childhood moral disengagement was linked to defending among girls. Social status moderated the associations between morality dimensions and bullying and defending. The moderating effects of status were discussed considering status as a magnifying lens for the relations between individual characteristics and social behavior. The results were also discussed with reference to age and gender differences in the associations. Aggr. Behav. 38:456‐468, 2012. © 2012 Wiley Periodicals, Inc.     

Global hip‐hop identities: Black youth,psychoanalytic action research,and the Moving to the Beat project

The paper presents a psychoanalytically informed analysis of the concept of hip‐hop identity through the lens of a four‐year social action research and documentary film project, titled Moving to the Beat (M2B). The M2B project sought to document and unpack key psychological and social dynamics behind the struggle for a global identity among Black hip‐hop activists in Africa and America. Two groups were formed, one in Portland, Oregon and a second in Freetown, Sierra Leone, with the aim of enlisting hip‐hop as a mode of cross‐cultural dialogue and as a forum for activism. Three key themes are discussed as they emerged as sites of creative conflict through the M2B project: the struggle to establish a progressive identity over against politically and psychologically regressive currents in hip‐hop culture, the search for authenticity in the context of globally manufactured identities, and differing conceptions of rebellion and intergenerational conflict. The paper describes how psychoanalytic theory informed the process of producing the Moving to the Beat documentary film and working through these sites of conflict in negotiating the borders of hip‐hop global identities. Copyright © 2011 John Wiley & Sons, Ltd.     

More to it than meets the eye: how eye movements can elucidate the development of episodic memory

The ability to recognise past events along with the contexts in which they occurred is a hallmark of episodic memory, a critical capacity. Eye movements have been shown to track veridical memory for the associations between events and their contexts (relational binding). Such eye-movement effects emerge several seconds before, or in the absence of, explicit response, and are linked to the integrity and function of the hippocampus. Drawing from research from infancy through late childhood, and by comparing to investigations from typical adults, patient populations, and animal models, it seems increasingly clear that eye movements reflect item–item, item–temporal, and item–spatial associations in developmental populations. We analyse this line of work, identify missing pieces in the literature and outline future avenues of research, in order to help elucidate the development of episodic memory.     

A Standardized Set of 380 Pictures for Lebanese Arabic: Norms for Name Agreement,Conceptual Familiarity,Imageability, and Subjective Frequency

Journal of Psycholinguistic Research - Research on language processing requires language-specific norms of pictorial and linguistic experimental stimuli across different psycholinguistic variables....     

Processes underlying developmental reversals in false-memory formation: comment on Brainerd, Reyna, and Ceci (2008)

C. J. Brainerd, V. F. Reyna, and S. J. Ceci (2008) reviewed compelling evidence of developmental reversals in false-memory formation (i.e., younger children exhibit lower false-memory rates than do older children and adults) and proposed that this phenomenon depends on the development of gist processing (i.e., the ability to identify and process the semantic theme of word lists, events, etc.). A full understanding of development reversals, however, cannot be achieved without further characterizing the role played by complementary or opposing processes. Suggestions for future research are made from this perspective.     

Memory distortions and anxiety in alcoholism: a directed-forgetting investigation

Alcohol-dependent individuals and healthy social drinkers differ in their physiological, cognitive, and subjective reactivity to alcohol-related stimuli, the mnesic accessibility of alcohol-related concepts, inhibition abilities, or mnesic performance (F. Ryan, 2002; F. Stetter, K. Ackerman, A. Bizer, E. R. Straube, & D. Mann, 1995). The author investigated (a) cognitive inhibition abilities of alcohol-dependent individuals, particularly for alcohol-related words, and (b) the relationship between anxiety and cognitive activation of alcohol-related concepts in alcohol-dependent individuals by using the directed-forgetting paradigm item-by-item and list procedures. The author used a 2 (Alcohol Consumption: alcohol-dependent individuals vs. social drinkers) x 2 (Word Type: neutral vs. alcohol-related) design. Alcohol-dependent individuals had significantly more difficulty than did social drinkers in voluntarily inhibiting alcohol-related verbal stimuli. This effect seems to be general and nonspecific in alcoholism. In alcohol-dependent individuals, a high level of state anxiety was associated with significant difficulties in inhibiting alcohol-related verbal stimuli. Results suggest that anxiety is a key feature in alcoholism, facilitating the activation of alcohol-related concepts in semantic memory.     

Do Feelings of Loneliness Mediate the Relationship between Sociocognitive Understanding and Depressive Symptoms During Late Childhood and Early Adolescence?

An interesting association between sociocognitive understanding and depression has been documented in clinical populations, with high levels of depression apparently related to theory-of-mind deficits. Yet no research has so far investigated this relationship among typically developing preadolescents. Therefore, the authors' main aim was to extend previous findings to the general population and to a younger age group. A secondary aim was to explore the role of feelings of loneliness referring to the previous link. A sociocognitive understanding task followed by self-report questionnaires on depressive symptoms and perceived loneliness were administered to a sample of 326 students attending primary and middle schools. Mediation analyses revealed that feelings of loneliness mediated the effect of sociocognitive understanding on depressive symptoms, but only among girls. In boys, depressive symptoms were directly linked to sociocognitive skills. In girls, on the contrary, the relationship between sociocognitive skills and depressive symptoms was significantly mediated by feelings of loneliness. Theoretical and practical implications of these findings are discussed.